Pop-up dolly for a towing system

Details Pop-up dolly for a towing system Pop-up dolly for a towing system

1988-03-23

1989-07-11

Marmor, Charles A.

Land vehicles

Wheeled

Extensible

280 43, 414426, B62D 6300, B65G 700, B62B 302

Patent

active

048464848

ABSTRACT:
A wheel cradling assembly includes a self-locking and self-unlocking actuator assembly associated with each of four dolly wheels, each actuator assembly having a roll-over pivot gear for moving an associated dolly wheel spindle between released and actuated positions. A gear lock either allows or prohibits rotational motion of the roll-over pivot gear in accordance with the pivotable position of the gear lock, and a spindle retainer automatically engages and releasably locks the dolly wheel spindle whenever the spindle is moved to the actuated position by the gear. The dolly assembly also includes a pair of cross arm assemblies extending transversely between a pair of dolly wheel carrying base assemblies for surrounding a pair of coaxial wheels of a towed vehicle.

REFERENCES:
patent: 1000199 (1911-08-01), Sautter
patent: 1134211 (1915-04-01), McCalmont
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patent: 4491334 (1985-01-01), Tarbell
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Brochure-Tolle Manufacturing-Pop-Up Do-ly PD 01-480, 570.
Brochure-Collins Manufacturing-SL Dolly.
Brochure-Holmes Self-Loading Dolly Model D-10, Pub. No. 86-384, Rev. 12/86.

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